Question

One mole of a monatomic ideal gas initially at a volume of 10
liters and a temperature of 300 K is heated at constant volume to a
temperature of 600 K , allowed to expand isothermally to it initial
pressure and finally compressed isobarically to its original volume
, pressure and temperature . ( a ) Compute the heat input to the
system during one cycle . ( b ) What is the net work done by the
gas during one cycle ? ( c ) What is the efficiency of the cycle
?